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Finding the Fourth Proportional to 357,617.80, 536,426.70 and 108,299.80

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Solution

The fourth proportional to 357,617.80, 536,426.70 and 108,299.80 is: 162,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,617.80 : 536,426.70 = 108,299.80 : x
  2. Step 2: Convert to fraction form
    357,617.80/536,426.70 = 108,299.80/x
  3. Step 3: Cross multiply
    357,617.80x = 536,426.70 × 108,299.80
  4. Step 4: Simplify right side
    357,617.80x = 58,094,904,324.66
  5. Step 5: Solve for x
    x = 58,094,904,324.66/357,617.80
  6. Step 6: Final answer
    x = 162,449.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.